Significant risk and associated factors of active tuberculosis infection in Korean patients with inflammatory bowel disease using anti-TNF agents

Table 1 Baseline characteristics of patients treated with anti-TNF agent

	n = 376
Sex (male:female)	255:121
Age of diagnosis (yr)	27.9 ± 12.6
Age at the start of anti-TNFs (yr)	32.5 ± 13.0
Follow-up (mo)	81.6 ± 58.9
Diseases
Crohn’s disease	277 (73.7)
L1/L2/L3/L1+L4/L3+L4	48/60/157/4/8
B1/B2/B3	102/87/88
Perianal disease	160 (42.5)
Ulcerative colitis	99 (26.3)
E1/E2/E3	8/45/46
Previous anti-TB treatment	8 (2.1)
Diabetes Mellitus	12 (3.2)
Anti-TNF agents
Infliximab	294 (78.2)
Adalimumab	82 (21.8)

Data are espressed as n (%) or mean ± SD. TB: Tuberculosis; UC: Ulcerative colitis.